111. Why should you care about the OSI Reference Model? It provides a framework for discussing network operations and design. 112. What is logical link control? One of two sublayers of the data link layer of OSI reference model, as…

91. What is MAC address? The address for a device as it is identified at the Media Access Control (MAC) layer in the network architecture. MAC address is usually stored in ROM on the network adapter card and is unique.

81. What is Beaconing? The process that allows a network to self-repair networks problems. The stations on the network notify the other stations on the ring when they are not receiving the transmissions. Beaconing is used in Token ring and…

71. What is Sliding Window? The sliding window is an abstract concept that defines the range of sequence numbers that is the concern of the sender and receiver. In other words, he sender and receiver need to deal with only…

61. What is Fixed Size Framing? In fixed-size framing, there is no need for defining the boundaries of the frames. The size itself can be used as a delimiter. 62. Define Character Stuffing? In byte stuffing (or character stuffing), a…

51. Compare Error Detection and Error Correction: The correction of errors is more difficult than the detection. In error detection, checks only any error has occurred. In error correction, the exact number of bits that are corrupted and location in…

31. Which layer links the network support layers and user support layers? The Transport layer links the network support layers and user support layers. 32. What are the concerns of the Physical Layer? Physical layer coordinates the functions required to…

21. Define the terms Unicasting, Multiccasting and Broadcasting? If the message is sent from a source to a single destination node, it is called Unicasting. If the message is sent to some subset of other nodes, it is called Multicasting.…